Not sure what your JSP page looks like but here are some ideas for you to look at....might help might not.
to auto refresh the page you could use a meta tag in the jsp page to instruct the browser not to store the page in the cache. That is...
<META HTTP-EQUIV = "pragma" CONTENT="no-cache">
also I think you would want to....(if your not already) when you use<FORM>, the you use METHOD=POST not METHOD=GET.
also to refresh by the browser you can use. This one I use a lot.
<meta http-equiv="refresh" content="1;url=http://www.yoursite.com">
Well I hope some of this helped.